期刊论文

Flame retardant effect of phosphotungstic acid intercalated ZnAl layered double hydroxides and intumescent flame retardant on epoxy-polyamide resin

Yuan, Liping(tiansiyuan@126.com)

中文

复合材料学报

1000-3851

2020

37

9

2125-2136

10.13801/j.cnki.fhclxb.20200512.001

国家自然科学基金(31670563) 湖南省高校生物质复合材料创新平台基金(18K058)。

本校为第一且通讯机构

采用[PW_(12)O_(40)]3–离子柱撑插层共沉淀法合成的ZnAl硝酸根(NO_3~-ZnAl)层状双金属氢氧化物(LDHs),制备了PW_(12)O_(40)-ZnAl LDHs,并利用XRD、FTIR、电感耦合等离子体(ICP)、SEM等进行组成和结构的表征。将NO_3~-ZnAl LDHs和PW_(12)O_(40)-ZnAl LDHs分别与含聚磷酸铵、三聚氰胺、季戊四醇的膨胀阻燃剂(IFRs)复合阻燃环氧-聚酰胺树脂(EP-PA),采用TGA、背温实验和锥形量热实验评价不同ZnAl LDHs与IFRs复合阻燃EP-PA的热及烟气的释放规律。TGA结果表明,PW_(12)O_(40)-ZnAl-IFRs/(EP-PA)复合材料的最大降解速率最小,残炭率最高,说明PW_(12)O_(40)-ZnAl LDHs提高了IFRs/(EP-PA)复合材料高温下的...

The PW12O40-ZnAl layered double hydroxides(LDHs) was prepared by using [PW12O40]3- ion pillared intercalation NO3-ZnAl LDHs. The composition and structure were analyzed by XRD, FTIR, inductively coupled plasma(ICP) and SEM. The flame retardant epoxy-polyamide resin(EP-PA) were prepared by NO3-ZnAl LDHs or PW12O40-ZnAl LDHs compound with intumescent flame retardants(IFRs) containing ammonium polyphosphate, melamine, pentaerythritol. The heat and smoke release rules of different ZnAl LDHs-IFRs flame retardant EP-PA were evaluated by back temperat...